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      1 /***************************************************************************/
      2 /*                                                                         */
      3 /*  svpscmap.h                                                             */
      4 /*                                                                         */
      5 /*    The FreeType PostScript charmap service (specification).             */
      6 /*                                                                         */
      7 /*  Copyright 2003, 2006, 2009, 2012 by                                    */
      8 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
      9 /*                                                                         */
     10 /*  This file is part of the FreeType project, and may only be used,       */
     11 /*  modified, and distributed under the terms of the FreeType project      */
     12 /*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
     13 /*  this file you indicate that you have read the license and              */
     14 /*  understand and accept it fully.                                        */
     15 /*                                                                         */
     16 /***************************************************************************/
     17 
     18 
     19 #ifndef __SVPSCMAP_H__
     20 #define __SVPSCMAP_H__
     21 
     22 #include FT_INTERNAL_OBJECTS_H
     23 
     24 
     25 FT_BEGIN_HEADER
     26 
     27 
     28 #define FT_SERVICE_ID_POSTSCRIPT_CMAPS  "postscript-cmaps"
     29 
     30 
     31   /*
     32    *  Adobe glyph name to unicode value.
     33    */
     34   typedef FT_UInt32
     35   (*PS_Unicode_ValueFunc)( const char*  glyph_name );
     36 
     37   /*
     38    *  Macintosh name id to glyph name.  NULL if invalid index.
     39    */
     40   typedef const char*
     41   (*PS_Macintosh_NameFunc)( FT_UInt  name_index );
     42 
     43   /*
     44    *  Adobe standard string ID to glyph name.  NULL if invalid index.
     45    */
     46   typedef const char*
     47   (*PS_Adobe_Std_StringsFunc)( FT_UInt  string_index );
     48 
     49 
     50   /*
     51    *  Simple unicode -> glyph index charmap built from font glyph names
     52    *  table.
     53    */
     54   typedef struct  PS_UniMap_
     55   {
     56     FT_UInt32  unicode;      /* bit 31 set: is glyph variant */
     57     FT_UInt    glyph_index;
     58 
     59   } PS_UniMap;
     60 
     61 
     62   typedef struct PS_UnicodesRec_*  PS_Unicodes;
     63 
     64   typedef struct  PS_UnicodesRec_
     65   {
     66     FT_CMapRec  cmap;
     67     FT_UInt     num_maps;
     68     PS_UniMap*  maps;
     69 
     70   } PS_UnicodesRec;
     71 
     72 
     73   /*
     74    *  A function which returns a glyph name for a given index.  Returns
     75    *  NULL if invalid index.
     76    */
     77   typedef const char*
     78   (*PS_GetGlyphNameFunc)( FT_Pointer  data,
     79                           FT_UInt     string_index );
     80 
     81   /*
     82    *  A function used to release the glyph name returned by
     83    *  PS_GetGlyphNameFunc, when needed
     84    */
     85   typedef void
     86   (*PS_FreeGlyphNameFunc)( FT_Pointer  data,
     87                            const char*  name );
     88 
     89   typedef FT_Error
     90   (*PS_Unicodes_InitFunc)( FT_Memory             memory,
     91                            PS_Unicodes           unicodes,
     92                            FT_UInt               num_glyphs,
     93                            PS_GetGlyphNameFunc   get_glyph_name,
     94                            PS_FreeGlyphNameFunc  free_glyph_name,
     95                            FT_Pointer            glyph_data );
     96 
     97   typedef FT_UInt
     98   (*PS_Unicodes_CharIndexFunc)( PS_Unicodes  unicodes,
     99                                 FT_UInt32    unicode );
    100 
    101   typedef FT_UInt32
    102   (*PS_Unicodes_CharNextFunc)( PS_Unicodes  unicodes,
    103                                FT_UInt32   *unicode );
    104 
    105 
    106   FT_DEFINE_SERVICE( PsCMaps )
    107   {
    108     PS_Unicode_ValueFunc       unicode_value;
    109 
    110     PS_Unicodes_InitFunc       unicodes_init;
    111     PS_Unicodes_CharIndexFunc  unicodes_char_index;
    112     PS_Unicodes_CharNextFunc   unicodes_char_next;
    113 
    114     PS_Macintosh_NameFunc      macintosh_name;
    115     PS_Adobe_Std_StringsFunc   adobe_std_strings;
    116     const unsigned short*      adobe_std_encoding;
    117     const unsigned short*      adobe_expert_encoding;
    118   };
    119 
    120 
    121 #ifndef FT_CONFIG_OPTION_PIC
    122 
    123 #define FT_DEFINE_SERVICE_PSCMAPSREC( class_,                               \
    124                                       unicode_value_,                       \
    125                                       unicodes_init_,                       \
    126                                       unicodes_char_index_,                 \
    127                                       unicodes_char_next_,                  \
    128                                       macintosh_name_,                      \
    129                                       adobe_std_strings_,                   \
    130                                       adobe_std_encoding_,                  \
    131                                       adobe_expert_encoding_ )              \
    132   static const FT_Service_PsCMapsRec  class_ =                              \
    133   {                                                                         \
    134     unicode_value_, unicodes_init_,                                         \
    135     unicodes_char_index_, unicodes_char_next_, macintosh_name_,             \
    136     adobe_std_strings_, adobe_std_encoding_, adobe_expert_encoding_         \
    137   };
    138 
    139 #else /* FT_CONFIG_OPTION_PIC */
    140 
    141 #define FT_DEFINE_SERVICE_PSCMAPSREC( class_,                               \
    142                                       unicode_value_,                       \
    143                                       unicodes_init_,                       \
    144                                       unicodes_char_index_,                 \
    145                                       unicodes_char_next_,                  \
    146                                       macintosh_name_,                      \
    147                                       adobe_std_strings_,                   \
    148                                       adobe_std_encoding_,                  \
    149                                       adobe_expert_encoding_ )              \
    150   void                                                                      \
    151   FT_Init_Class_ ## class_( FT_Library              library,                \
    152                             FT_Service_PsCMapsRec*  clazz )                 \
    153   {                                                                         \
    154     FT_UNUSED( library );                                                   \
    155                                                                             \
    156     clazz->unicode_value         = unicode_value_;                          \
    157     clazz->unicodes_init         = unicodes_init_;                          \
    158     clazz->unicodes_char_index   = unicodes_char_index_;                    \
    159     clazz->unicodes_char_next    = unicodes_char_next_;                     \
    160     clazz->macintosh_name        = macintosh_name_;                         \
    161     clazz->adobe_std_strings     = adobe_std_strings_;                      \
    162     clazz->adobe_std_encoding    = adobe_std_encoding_;                     \
    163     clazz->adobe_expert_encoding = adobe_expert_encoding_;                  \
    164   }
    165 
    166 #endif /* FT_CONFIG_OPTION_PIC */
    167 
    168   /* */
    169 
    170 
    171 FT_END_HEADER
    172 
    173 
    174 #endif /* __SVPSCMAP_H__ */
    175 
    176 
    177 /* END */
    178